Match List I with List II and and select the Codes
List I (Organic acid)                                          List II (Substances in which they are present)
Lactic acid                                                         1. Lemon
Acetic acid                                                          2. Rancid butter
Citric acid                                                            3. Milk
Butyric acid                                                         4. Vinegar
                                                                             5. Wine

Which of the following diseases is/are sexually transmitted?
1.Syphilis
2.Gonorrhoea
3.AIDS

Which of the following diseases is most likely to be developed by a worker engaged in cutting and grinding of stones for several years?

Which one of the following is true regarding plant cells and animal cells?

Which of the following sets contains foods rich in carbohydrates?

Pace-maker is also known as

Which of the following statements is/are true about tears secreted by the glands under the top eyelids?
1.It contains sodium bicarbonate.
2.It contains sodium chloride.
3.It contains an enzyme lysozyme which can destroy bacteria.
4.It supplies oxygen to the cornea and crystalline lens.

The fruit formed without fertilisation is

Pregnant women usually become deficient in

Regarding the carrot, it is true to say that